a
Department of CTS, Kulliyyah of Science, International Islamic University Malaysia, 25200 Kuantan, Malaysia
b
Division of Biomedical Engineering, School of Engineering, University of Glasgow, Oakfield Avenue, Glasgow, UK
E-mail: jon.cooper@glagsow.ac.uk
;
Fax: +44 (0)141-330 4907
;
Tel: +44 (0)141-330 5231
c
Electronic and Nanoscale Engineering, School of Engineering, University of Glasgow, Oakfield Avenue, Glasgow, UK